Mechanical battery games (and more)

I remember wanting them so badly...
But they were expensive at the time (early 80es)... and now even more because they are "vintage" :<

Anyway, Tomy made these 2 nice mechanical games:
- Tricky Golf
- Tricky Traps
- even more handheld mechanical games here.

While exploring a bit of the Web looking for these games, I also found some very nice related material:
- an electro-mechanical watch (with display)
- THE AUTOMATA / AUTOMATON BLOG (here)
- Modern Mechanix (here), that has a lot of great retro-commercials and news